My ex’s folks ran one for 20 years, they worked their asses off and made a sort of adequate income… They were actually directly opposite a decent sized supermarket for most of that, and it didn’t seem to trouble them massively. They had every little revenue stream- lottery, billpay, they’d have been all over myhermes etc. Though as her dad said “The arse’s fallen out of the **** mag trade these days”.
The payday for them was selling out to retire, they sold it as a going concern with name etc to another shop who figured the “norn irish immigrant” riff that came with it was more appealing to racists than “yes, pakistani descent but was bloody born here”… anyway, they made several years worth of profits in a day.
If their experience is typical, I bloody wouldn’t.